Ch 10 Database Management (Correct answers)
database correct answers a collection of data organized in a manner that allows access, retrieval,
and use of that data.
data correct answers a collection of unprocessed items =
information correct answers processed data; is useful, organized, and meaningful
database software correct answers DBMS; a management system where users create a
computerized database, add, modify, and delete data in a database, and create forms and reports
from the data in the database
data is organized in layers correct answers characters, field, record, data file
character correct answers each byte which can be represented as a number, letter, space, or
punctuation mark
field correct answers a combination of one or more related characters or bytes and is the
smallest unit of data a user accesses
record correct answers a group of related fields
primary key correct answers a field that uniquely identifies each record in a file
data file correct answers a collection of related records stored on a storage medium such as a
hard disk or optical disc
file maintenance correct answers refers to the procedures that keep data current; adding records
to, modifying records in, and deleting records from a file
validation correct answers the process of comparing data with a set of rules or values to find out
if the data is correct
file processing system correct answers store and manage data; each department within an
organization has its own set of files; are used for many years; have data redundancy; isolate data
database approach correct answers an organization where many programs and users share data
in the database; reduce data redundancy; improve data integrity; easier access; more vulnerable
data dictionary correct answers contains data about each file in the database and each field in
those files
query correct answers a request for specific data from the database
database correct answers a collection of data organized in a manner that allows access, retrieval,
and use of that data.
data correct answers a collection of unprocessed items =
information correct answers processed data; is useful, organized, and meaningful
database software correct answers DBMS; a management system where users create a
computerized database, add, modify, and delete data in a database, and create forms and reports
from the data in the database
data is organized in layers correct answers characters, field, record, data file
character correct answers each byte which can be represented as a number, letter, space, or
punctuation mark
field correct answers a combination of one or more related characters or bytes and is the
smallest unit of data a user accesses
record correct answers a group of related fields
primary key correct answers a field that uniquely identifies each record in a file
data file correct answers a collection of related records stored on a storage medium such as a
hard disk or optical disc
file maintenance correct answers refers to the procedures that keep data current; adding records
to, modifying records in, and deleting records from a file
validation correct answers the process of comparing data with a set of rules or values to find out
if the data is correct
file processing system correct answers store and manage data; each department within an
organization has its own set of files; are used for many years; have data redundancy; isolate data
database approach correct answers an organization where many programs and users share data
in the database; reduce data redundancy; improve data integrity; easier access; more vulnerable
data dictionary correct answers contains data about each file in the database and each field in
those files
query correct answers a request for specific data from the database
